主要是解答群友的两个小问题

1. 获取datagridview的行号和列号

   private void dataGridView1_CellValueChanged(object sender, DataGridViewCellEventArgs e){MessageBox.Show("当前行号" + e.RowIndex.ToString() + "当前列号："+ e.ColumnIndex.ToString());}

2. 将数组赋值给Matrix并转换为Mat

using Emgu.CV;
using System;
using System.Windows.Forms;namespace WindowsFormsApp7
{public partial class Form1 : Form{public Form1(){InitializeComponent();}private void dataGridView1_CellValueChanged(object sender, DataGridViewCellEventArgs e){// MessageBox.Show("当前行号" + e.RowIndex.ToString() + "当前列号："+ e.ColumnIndex.ToString());}public Mat CreateMatFromArr(double[,] arr){int height = arr.GetLength(0);int width = arr.GetLength(1);Matrix<double> mask = new Matrix<double>(height,width);mask.Data = arr;return mask.Mat;}private void Form1_Load(object sender, EventArgs e){double[,] dataArr = { { 100,100,100,100,100,100,100,100,100,100},{100,100,100,100,100,100,100,100,100,100} };Mat m = CreateMatFromArr(dataArr);pictureBox1.Image = m.Bitmap;}}
}

运行结果：

函数的参数需要泛型。。。。，修改如下：

using Emgu.CV;
using System;
using System.Windows.Forms;namespace WindowsFormsApp7
{public partial class Form1 : Form{public Form1(){InitializeComponent();}private void dataGridView1_CellValueChanged(object sender, DataGridViewCellEventArgs e){// MessageBox.Show("当前行号" + e.RowIndex.ToString() + "当前列号："+ e.ColumnIndex.ToString());}public Mat CreateMatFromArr<T>(T[,] arr){int height = arr.GetLength(0);int width = arr.GetLength(1);Matrix<double> mask = new Matrix<Double>(height, width);for (int row = 0;row < height;row ++){for (int col = 0; col < width; col++)mask.Data[row, col] = Convert.ToDouble(arr[row, col]);}return mask.Mat;}private void Form1_Load(object sender, EventArgs e){int[,] dataArr = { { 100,100,100,100,100,100,100,100,100,100},{100,100,100,100,100,100,100,100,100,100} };// int,double,byte均可Mat m = CreateMatFromArr(dataArr);pictureBox1.Image = m.Bitmap;}}
}